hey guys, im changing my spark plugs on a 2002 and the fron 3 were easy, but im stuck on the rears.

I took off the throttle body and got to the right one and the middle one. But the left one seems to be under the cylinder thing, i dont know what you want to call that and I just cant seem to get the bolt off all the way. its a PITFA!

Has anyone had any luck?
PLease help quick!

thanks!!

 

I think some1 by the name of SR20DEN could help u with this. U puttin in colder plugs or something? Btw I havnt changed plugs on the 3.5 yet. Goodluck and please be careful the last thing u want to do is cross thread a sparkplug.

 

i belive intake manifold needs to come off as well.....by the way could you list what brand plug your using? material? and part number. Thanks =)

 

R u serious? U gotta remove the intake manifold to R&R the spark plugs That just plain suck, I dont consider anything under the hood to be difficult to do. Some thing just take more time then others but I didnt expect that to be the case.

 

ya the intake manifold is blocking the bolt from fully comming out. please donmt tell me i gotta take the manifold off..

 

pics...

http://www.boostedmaxima.com/images/100_2557.jpg

http://www.boostedmaxima.com/images/100_2555.jpg

 

Thats just plain wrong that u gotta do that do change the plugs out, and I though changing the injectors on a 300ZX was a pain.
What can I say man, goodluck. What plugs u puttin in? 1step colder?brand?

 

1 step colder NGK coppers gapped to .36
part number bkr6e-II or soemthing like that

no ones done it before?
can anyone get a hold of sr20den?

 

I previsouly tried...with a set of NGK coppers...but had the wrong part number (used ones from 2001) and hte plug was way too short. Can you confirm the plug lenght?

 

I dont know if any1 has done colder plugs to a 3.5 yet, I know 4 a fact the Matt/SR20DEN has a 125+ shot of nitrous on his but im not too sure if hes runnin colder plugs. I know hes using Bosch but thats about it. Try PM'n him.

 

hey,im sure matt is running colder plugs, he wouldnt be dumb enough not too.
Im running 75 of nx and that requires it =].

Well, i opened and took off the intake manifold. Its kinda cool in there, makes me wants to do a direct port now =] Shoudlnt be that difficult.
Plugs are in, takes a little longer to warm up...didnt spray yet, so i dont know if theres a noticable difference in performance.

As for the idiots saying you lose power with coppers...thats BS.

3.5 guys, you dont, i repeat DO NOT want to change ur plugs urself...
i should do a write up..but im lazy

good nite guys, thanks for all the help!

 

Well congrats and good luck with the NX, btw which kit # did u get?
Im gettin a 2K3 in a month or so and will most likely go for a 75 shot temporarly til my warranty is up then ill setup up to a n20 contoller and maybe direct port, but im goin over 125shot ill tell u that right now. The higher u rev the more u can spray, maybe start off 75shot at 3000rpms and kick up to 100 at 4K and up to about 150 from 5K on up. Should hold just fine, hope the tires will.